Home / 20,154.79-30,228.81-5,363.92

Finding the Fourth Proportional to 20,154.79, 30,228.81 and 5,363.92

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Solution

The fourth proportional to 20,154.79, 30,228.81 and 5,363.92 is: 8,044.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,154.79 : 30,228.81 = 5,363.92 : x
  2. Step 2: Convert to fraction form
    20,154.79/30,228.81 = 5,363.92/x
  3. Step 3: Cross multiply
    20,154.79x = 30,228.81 × 5,363.92
  4. Step 4: Simplify right side
    20,154.79x = 162,144,918.54
  5. Step 5: Solve for x
    x = 162,144,918.54/20,154.79
  6. Step 6: Final answer
    x = 8,044.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.